The purpose of the shake in the Apex Legends game at 1440p resolution is to use a technique that allows players to gain an advantage in aiming and shooting through the use of errors or unintentional behavior of the game mechanics. To do this, players quickly switch or spam a specific button, usually a squat or melee button, to cause a visual jitter effect on the player's screen. This can create a false sense of movement or instability, which makes the player's goal more difficult for opponents. As a result, a player using such a technique may have more accurate aiming and an increased chance of hitting. Given the resolution of 1440p, players who master this technique are able to improve the quality of their game and increase their competitiveness in Apex Legends matches.